Hi I'm considering buying an Oso indirect cylinder and looking at either the Super S or the Delta. Not sure if the choice is purely down to ascetics? The Super S is rated C and the Delta rated A but unsure if this would save a huge amount on energy cost. I would welcome any advice on which one to go for.
Oso hot water cylinder
- Thread starter melross
- Start date
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Look up the data for each on the OSO site (technical specifications, heat loss column). Work out the difference in heat loss as so many Kwh / day. Multiply the result by the cost of your heating source (electricity / gas / oil / LPG?) per Kw/H to give daily cost differential. Divide the difference in price between the two versions by the daily cost differential to get the number of days required to make up the difference in price. Bit rough and ready but hard to see how it can be done more accurately without knowing usage patterns, future gas etc. prices.
Not overly keen on these digital stats.
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